城墙【英】

Ciity Wall

定义

城市的基本防御设施及确定城市规范的建筑。壁画中墙顶砌女墙、雉堞、堞眼，每隔一段距离增设墩台，以加强城墙的防御功能。

The structure of a city that serves as the basic defense and clarifies the city boundary. In murals, a city wall is often topped with parapets, crenelations and battlements, and ramparts are also built around the top with regular gaps, so as to strengthen its defensive function.